Paper-winding mechanism for musical instrument.



P. WELIN. PAPER WINDING MECHANISM FOR MUSICAL INSTRUMENTS.

APPLICATION FILED FEB. 24, 1903. RENEWED JUNE 15, 1909.

Patented Dec. 21, 1909.

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Patented Dec. 21, 1909.

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X 605 floy'eya APPLICATION FILED FEB. 24

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' "Instruments,

UNITED strains PATENT OFFICE.-

.PETEB WELIN, WORCESTER, MASSACHUSETTS, ASSIGNOR, BY MESNE ASSIGNMENTS, "130 THE 1mm AUTO-GRAND PIANO-CO. OF AMERICA, 01 CONNERSVILLE, INDIANA,

A COBPOBATION OF INDIANA;

emmwmnme MECHANISM FOR MUSICAL INSTRUMENTS.

. Specification of Letters Patent.

Application filed February 24, 1908; Serial No. 144,676. Renewed June 15, 1909. Serial No. 502,332.

To allwhom i t'my concer'li: Be it known that I, PETER Wn iN, a citizenof the United States, residing at Worces- .ter, in the county of Worcester and State of Massachusetts, have invented a new and useful Paper-Winding Mechanism for Musical of which the following is a specification.

This invention relates to that class of antomatic musical. instruments which are controlled by rolls of perforated paper.

The especial objects of this invention are -to provide a pneumatic reversing connection for re-winding the paperon the music rolls; to provide a regulating-belt for tensioning the paper and furnishing a uniform resistance during the forward winding of the music which regulating belt is relaxed during re-winding; to provide a re-winding chain which is relaxed or left loose while the paper is being wound forward and which has an, increased tension while the paper is being re-wound'. Y

.To these ends, this inventionconsists of the paper winding mechanism for automatic musical instruments and of the combinations of parts therein as hereinafter described and more particularly pointedout in the claims at the end of this specification.

. In the accompanying three sheets of drawings, Figure-l is'a front view of sufiicient parts of a pa erwindin mechanism to illustrate the app ication o my invention thereto. Fig. 2 is'an enlarged transverse sectional view of the same. Fig. 3 is a fragmentary end view. Fig. 4 is a view similar showing the parts in a different relative position. Fig; 5 is a detail view of the re-winding chain wheel. Fig. 6 is a similar' view showing the chain wheel thrown into driving position. -Fig. 7 is a sectional view of the pneumatic for operating the reversing devices, and Fig. 8 is a perspective view of the valve which controlsthe reversing pneumatic.

Referring to the accom anying drawings for a detail description 0 a paper winding mechanism constructed according to my in vention as illustrated ii Fig. 1, A designates a base piece or board .1. ving' a suction chamber 10.

Arrangedbelow the suction chamber 10 and connected therewithby a port is'a suction channel 11. The port between the assage 10 and suction channel 11 is contro led by a sliding valve 12 which may be partly opened to throttle the passage between the chamber 10 and suction passage 11 to regulatethe speedof the motor. Supported on the base-plate A and at a distance above the same is a board 13. The board 13 as Patented Dec. 21, 1909.

illustrated most clearly inFig. 2 is provided with valve openings 14 connected to the suction channel 11 and with valve ports which connect the motor pneumatics. Any

desired type of motor may be employed, one

being shown comprising a back-piece 1S and one or more motor pneumatics 21. The movable section of each pneumatic is connected by a pitman 82 with the crank shaft 22 on the opposite end of the construction from the pneumatics and operated by an arm 23; extending from the pitman 82 is a slide valve 24. 'I do not herein claim the motor and its connections, however as the same form the subject of a separate invention which I in tend to present in a divisional application.

To reverse the winding of the music I preferably rovide connections which are 'pneumatical y controlled.

As shown in Fig. 1, a reversing pneumatic 25 is arranged horizontally upon the baseplate A. As shown most clearly in Fig. 7 the reversing pneumatic 25 is provided with a valve 26 controlling the port 27 which is connected to the atmosphere and the ports 28 and 29 which connect with the suction passage 11; the valve 26 is connected by a rod 30 to a slide 31, shown in Fig. 1, which slide 31 may be shifted whenever it is desired to reverse the winding mechanism. The movable section of the reversing pneumatic 25 engages a lever 32 which is connected by a link 33 to the swinging frame 34. The swinging frame 3a is provided with bearings 35 in which the motor crank shaft 22 is journaled. The arrangement of music rolls and tracker board may be substantially the same as in other instruments in this class.

As shown in'Fig. l the music sheet is wound; from a music roll 36 over a tracker-board T and .onto a winding roll 37.

Carried by the winding roll 37 is a gear 328 which'normally meets with and is driven by a pinion 39 on the shaft'22. Oonnected'with the shaft of the d of the motor crankbelt 47 'will be relaxed music roll 36 is a reversing stud or shaft 40 mounted on which is a tension belt pulley 41 and a reversing chain. wheel 42 which is movable to cooperate with a, fixed collar 43. The operation of the reversing connections isillustrated most clearly in Figs. 2 to 6. As shown in Fig. 3 a pivotally supported arm44 extends back from the rocking frame 34 which rocking frame 34 is normally held evenly. Ylhe rear end of the arm 44 is connected by a link 48 to a rock-shaft having a crank arm 49 engaging a slot 50 in the hub of the reversing chain-wheel 42. As shown in Figs. 5 and 6 the chain-wheel 42 is provided with a pin 5l which is arranged to engage with a pin 52 extending in from the collar 43. As shown in Fig. 2 a chain 53 runs on the chain-wheel 42 and around the chain-wheel 54 on'the motor crank shaft22. The chain 53 is normally quite loose and is held tightly in place by a guide wheel 55 carried by a spring arm 56; said arts being arranged so that the chain 53 will run easily- .while the music is being the tension of the chain will be increased when the music is being re-wound. In the operation of the reversing connections as thus arranged when the reversing pneumatic is operated the driving pinion on the end of the crank shaft will be thrown out of gear with the gear on the driving roll as illustrated by the dotted lines. in Fig. 4. At the same time the tension to permit the music to be rewound without restraint while at the same time the driving chain 53 will be tightened and an efficient re-wind secured.

I am aware that numerous changes may be made in practicing my invention by those who are skilled in the art and that certain features of my'construction may be used in different combinations and in different locations Without departing from the scope of my invention as expressed in the claims. I do not wish therefore'to be limited to the constructions I have herein illustrated and described but What I do claim and desire to secure by.

Letters Patent of the United States is:

1. In a paper winding mechanism for automatic musical instruments, the combination of a tracker-board, amo'tor, having a shifting crank-shaft, a winding train comprising a winding roll and gears connecting the winding'roll with the crank-shaft, a' replayed and so that of the spiral spring winding train comprisin a chain and sprocket wheels driven from the motor crank-shaft, and means for moving the crank' shaft to uncouple the driving train, and to connect the driven sprocket wheel of the re-winding train with the re-win'ding shaft.

2. In a paper-winding mechanism for automatic musical instruments, the combination of a,tracker-board, a motor, a flexible tension belt and means whereby said belt places the music-sheet under tension and prevents unevenness of operation of the motor when the music-sheet is' being wound in one direction, and whereby said belt is relaxed when the music-sheetfis being rewound.

3. In a paper winding mechanism for automatic musical, instruments, the combination of a tracker-board, a motor, shiftable crank-shaft, a tensionin belt, and means for shifting the motor cran -shaft for re-windin the a er and simultaneously relaxing t e tensioning belt.-

' 4. In a paper winding 'mechanism for automatic musical instruments, the combination of a tracker-board, a motor, a re-winding train operated by said motor, and comprising a chain and sprocket-wheels, and means for tightening the chain when the perforated paper is being re-wound.

In' a paper -winding mechanism for having a automatic musical instruments, the combinaj tion of a tracker-board, a motor having a shiftable crank-shaft, a rte-winding train comprising a chain and sprocket eels, a 5 ring pressed roller en a ing the driving cliain, and means for s igting the crankshaft when the aper is to be re-wound, the shifting of sai' crank-shaft operating to tighten the chain.

6. In a paper winding mechanism for automatic musical instruments, the combination of a trac'ker-board,-a motor having a shiftable crank-shaft, a re-winding train comprising a driving chain and sprocket wheels, a tensioning belt controlling the motor while the paper is being wound 1n one direction, and means for shifting the crankshaft when the paper is to be re-wound, said means operating to tighten the driving chain durin re-windmg, and to relax the tensioningbet.- s

7. In a paper winding mechanism-the combination 0 ers, means for operating said rollers, a tensioning belt adapted to apply tension when the mechanism is operatingto wind the paper, and means for slackening the belt to relax the tension when it is operated to rewind. 4

8. In a winding mechanism, the combination of a movable shaft, a rewinding shaft,

a pulley on the-rewinding shaft, a movable arm, a pulley on said arm, and an elastic belt j connecting said pulleys, said. arm being connected with said firstnamed shaft whereby the movement of saidvshaft willxcontrol' the tightness of the belt'on said pulleys.

9. In a winding mechanism, the combination of a swinging'frame, a shaft journaled thereon, a takeup roll, means-mounted on the shaft for rotating the take-up roll, and

pneumatically controlled means for swing-- mg said frame to take-up roll.

isconnect it from the 10. In a winding mechanism, the combination of a movable frame, a shaft journaled thereon, a pinion on the shaft, a take-u roll, a gear connected with said take-up re and adapted to mesh with said pinion to receive power therefrom, a link depending from the frame, and a pneumatic connected with said link for movm 'the frame when the pneumatic is collapse 1 witnesses.

matically controlled means connected with the 'free end of said frame for swingin the frame about its I pivot, whereby the s'aft ma be'moved so as to be connected with, an disconnected from, the take-up roll.-

In testimon whereof I have hereunto set my hand, in the presence of two subscribing PETER WELIN.

Witnesses:

PHILIP W. Son'rHGA'rE, JOHN F, CBOWELL. 

